Novel tap changer

The utility model relates to an electrical switch, in particular to a novel bidirectional direct-acting tap changer. The utility model is realized in the way that the tap changer is composed of a stationary part and a moving part, wherein the stationary part is composed of a fixing frame, a fixed contact with a buffer spring, permanent magnet, an electromagnet stationary frame, a guide rod and a fixed contact spacer, and the fixed contact, the permanent magnet, the electromagnet stationary frame, the guide rod and the fixed contact space are installed on the fixing frame; the moving part is composed of a transmission body and a guide plate which are electromagnetic armature fixedly installed on the transmission body, and a moving contact with a buffer spring and a magnetizer, wherein the moving contact and the magnetizer are fixedly installed on the guide plate. The utility model has novel design and reliable motion; because the fixed contact and the moving contact are both provided with the buffer spring, th